Accriva Diagnostic AVOXimeter 4000 Operator's Manual page 51

9. Locate the flat cable that runs from the black optical unit to the main circuit board.
Disconnect the cable from the J203 connector on the main circuit board.
10. Locate the coaxial cable that runs from the black optical unit to the small circuit
board. Disconnect the cable from the J1XX connector on the small circuit board.
11. The upper cover containing the black optical unit can now be rested on a table
with the front panel facing down.
12. Using the 5mm nutdriver, remove the four nuts (and washers, if applicable) that
secure the black optical unit to the front panel. Then remove the black optical unit
from the instrument.
AVOXimeter 4000 Operator's Manual
Keypad Cable
Display Cable
Black Optical Unit
51